smk: add cscope and ctags support

Author: fmanco

.gitignore

@@ -21,3 +21,6 @@
 
 # cscope
 cscope.*
+
+# ctags
+TAGS

smk/s.mk

@@ -28,6 +28,9 @@ $(error "Non-supported language $(smk_lang)")
 endif
 endif
 
+# Include cscope and ctags support
+include $(smk_dir)/tags.mk
+
 # Provide smk functions
 define smk_binary
 $(1)_bin	:= bin/$(1)

smk/tags.mk

@@ -0,0 +1,32 @@
+ctags: TAGS
+cscope: cscope.out
+.PHONY: ctags cscope
+
+
+TAGS: cscope.files
+	$(call cmd,"TAGS","",etags, cscope.files)
+
+cscope.out: cscope.files
+	$(call cmd,"CSCOPE","",cscope, -b -q -k)
+
+cscope.files:
+	$(call cmd,"FIND",".*\.[h|hh|c|cc]",find, . -regex ".*\.[h|hh|c|cc]" > $@)
+
+
+ctags_distclean:
+	$(call clean,"TAGS",TAGS)
+
+distclean: ctags_distclean
+.PHONY: ctags_distclean
+
+cscope_clean:
+	$(call clean,"cscope.*",cscope.files cscope.in.out cscope.po.out)
+
+clean: cscope_clean
+.PHONY: cscope_clean
+
+cscope_distclean:
+	$(call clean,"cscope.out",cscope.out)
+
+distclean: cscope_distclean
+.PHONY: cscope_distclean